我们的想法是把刀片放在轮子上！你懂吗？
失去金属夹的刀片由螺丝和手柄上的夹子固定。
Blades without clips are held by screws and the clamp on the handle.
它的厚度约为一公里，若以相对比例而言，要比剃须刀的刀片薄上许多倍。
Saturn's rings to be about one kilometer thick, making them many times thinner, in relative proportion, than a razor blade.
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